Editor's note

Have you ever checked the surf forecast before paddling out? You owe Walter Munk a debt of gratitude.

The oceanographer, who turned 100 this week, has been described as the “Einstein of the oceans”. During his eight-decade career he discovered how waves travel around the world - helping surfers know where to catch a good set.

Michael Hopkin

Environment + Energy Editor

Top story

Like big waves? Thanks to surf forecasting, you’ll know when and where to find them. Shalom Jacobovitz/Wikimedia Commons

Hang ten (decades): Walter Munk, inventor of the surf forecast, turns 100

Paul Spence, UNSW; Shane Keating, UNSW

Walter Munk might be the most under-appreciated man in surfing, but he is a big deal in ocean science. If you've ever checked a surf forecast before paddling out, you have him to thank.

Environment + Energy

The new policy could end up feeding demand for coal. AAP Image/Dan Himbrechts

The government's energy policy hinges on some tricky wordplay about coal's role

John Quiggin, The University of Queensland

By rebranding coal as 'dispatchable', the government's National Energy Guarantee looks set to preserve demand for coal-fired power by giving it a new role – one it's not well equipped to fulfil.

Arts + Culture

Beauty is still understood as a process of ongoing work and maintenance. Shutterstock

Friday essay: toxic beauty, then and now

Michelle Smith, Deakin University

The history of dangerous cosmetics shows us the harms that women have suffered to meet expectations of what is beautiful.

The academy has changed substantially since Plato’s time. Wikimedia

Memo to the IPA: history teaching is driven by student demand, not 'identity politics'

Trevor Burnard, University of Melbourne

Australian universities are teaching 'identity politics' at the expense of Western history, according to an Institute of Public Affairs report. But unis make decisions based on student demand, not politics.

Politics + Society

Eight teams will take to the field for the second AFLW season – but transgender woman Hannah Mouncey will not be among them. AAP/Dan Peled

By excluding Hannah Mouncey, the AFL's inclusion policy has failed a key test

Catherine Ordway, University of Melbourne; Allistar Twigg, University of Melbourne

The decision to exclude transgender woman Hannah Mouncey from the AFLW may breach anti-discrimination law, and contradicts the AFL’s public position of embracing diversity and inclusivity.

While fear suppresses talk about dying, marriage equality involves sex. AAP/Danny Casey

Sex versus death: why marriage equality provokes more heated debate than assisted dying

Julian Savulescu, University of Oxford

The assisted dying bill in Victoria – complex and significant – is engendering less heated debate than marriage equality although both tap into some of our most fundamental fears and motivations.

Health + Medicine

We all have to die of something, so why can’t I die by delicious donuts? from www.shutterstock.com

We all have to die of something, so why bother being healthy?

Alessandro R Demaio, University of Copenhagen

Sure, you have to die of something, but you may not have to die so soon - and you could be healthier, wealthier and happier in the meantime.

Sleep is the time for our brain to reboot. Hernan Sanchez/Unsplash

Why our brain needs sleep, and what happens if we don’t get enough of it

Leonie Kirszenblat, The University of Queensland

Although it may appear you're “switching off” when you fall asleep, the brain is far from inactive.

Listen

Lukas Coch/AAP

Politics podcast: Gareth Evans on being an Incorrigible Optimist

Michelle Grattan, University of Canberra

Gareth Evans talks about his new book Incorrigible Optimist, in which he writes about his experiences in politics and the policymaking process.

Science + Technology

Artist’s impression of the collision of two neutron stars, the source of the latest gravitational waves detected. National Science Foundation/LIGO/Sonoma State University/A. Simonnet

At last, we've found gravitational waves from a collapsing pair of neutron stars

David Blair, University of Western Australia

Astronomers have finally confirmed the source of the latest detected gravitational waves was the collission of a pair of neutron stars, what they'd been searching for all along.

We need to build algorithms that act ethically. BEST-BACKGROUNDS/Shutterstock

Ethics by numbers: how to build machine learning that cares

Lachlan McCalman, Data61

Creating an ethical machine learning system is no simple task, but maths can help.

Business + Economics

Some gift cards can’t be used online. Shutterstock

Gift cards often end up in the bin, but extending their life might not help

Nicole Ibbett, Western Sydney University

The NSW government is set to mandate a 3 year minimum expiry period for gift cards, but it isn't clear that this will solve the problem of unredeemed cards.

APRA chair Wayne Byres says the regulator is unlikely to use its new enforcement powers. AAP

Why the new banking laws won’t be the slam dunk the government is expecting

Helen Bird, Swinburne University of Technology

While the government hopes its new regulation will rein in the banks, it's unlikely to do so.

Cities

In Melbourne, Adelaide and Sydney, just over a third of dwellings are within 400 metres of a public transport stop with services every 30 minutes, but the proportions are much lower in other cities. Angela Brkic/AAP

City-by-city analysis shows our capitals aren’t liveable for many residents

Billie Giles-Corti, RMIT University; Jonathan Arundel, RMIT University

Governments, developers and urban planners all aspire to create liveable cities. Yet when it comes to Australian cities, the rhetoric and reality don’t quite match.

Having to own multiple cars comes at a cost to the finances and health of residents in the sprawling outer suburbs. David Crosling/AAP

Designing suburbs to cut car use closes gaps in health and wealth

Jerome N Rachele, Australian Catholic University; Aislinn Healy, Australian Catholic University; Jim Sallis, University of California, San Diego; Takemi Sugiyama, Australian Catholic University

One of the most effective ways to reduce health inequalities across Australia is to design neighbourhoods that free residents from having to rely on cars for transport.

Education

The benefits of language-learning go far beyond being able to translate. 9to5google.com

Translation technology is useful, but should not replace learning languages

Michael Haugh, The University of Queensland

Does the upcoming launch of wireless headphones by Google that feature real-time language translation mean we don't need to study other languages anymore?

Readers should cast a more critical eye over information they use from the web, to make sure the knowledge built from it is trustworthy and accurate. Shutterstock

Three strategies to help students navigate dodgy online content

Kim Wilson, Macquarie University; Garry Falloon, Macquarie University

A report has discovered that while students born after 1980 have good digital skills, they need to think more critically about what they read online.

 

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